DSA Expectaions for a IITian

One interviewer told me at the end of the interview that you are an IITian . You could have solved these 3 DSA questions. What to say in this case?.

I want to crack a job which pays above 30LPA. For that I have to clear DSA rounds. I know that I have not done much preparation. Just 2-3 days before the interview I see famous interview questions.🤣🤣🤣